If you trying to use the report viewer in asp.net and have uploaded your site. However, when your page containing the report viewer is loaded, it shows the following error:

Could not load file or assembly ‘Microsoft.ReportViewer.WebForms, Version=11.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91’ or one of its dependencies. The located assembly’s manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040

Common Causes of the “Could Not Load File or Assembly” Error

To effectively troubleshoot this error, it’s essential to identify its root causes. Here are some common culprits:

1. Missing or Incorrect File References: If your project references a file or assembly that is missing or referenced incorrectly, you’ll likely encounter this error.
2. Version Mismatch: In some cases, the version of the file or assembly being referenced may not match the version expected by your application, leading to a failure to load.
3. Permissions Issues: Insufficient permissions to access the required files or assemblies can also trigger this error.
4. Corrupted Files: If any of the files or assemblies your application depends on are corrupted, loading them may fail, resulting in this error.

Troubleshooting Steps

Now that we have a better understanding of the potential causes, let’s explore some steps to resolve the “Could Not Load File or Assembly” error:

1. Check File References

Review your project’s references to ensure they are correct and up-to-date. Pay close attention to any dependencies that may have been recently added or modified.

2. Verify File Existence

Double-check that all the necessary files and assemblies exist in the specified locations. If any are missing, ensure they are properly installed or included in your project.

3. Address Version Mismatch

If there’s a version mismatch between the referenced file or assembly and the expected version, consider updating your references or ensuring compatibility with the required versions.

4. Grant Sufficient Permissions

Ensure that the account running your application has appropriate permissions to access the required files and assemblies. This may involve adjusting file permissions or running your application with elevated privileges.

5. Repair or Reinstall

If any files or assemblies are found to be corrupted, consider repairing or reinstalling them to resolve any issues.

Resolve this error: Could not load file or assembly

You need to install below two packages

• SQLSysClrTypes
• ReportViewer

Conclusion

The “Could Not Load File or Assembly” error can be a frustrating obstacle, but with a systematic approach to troubleshooting, you can overcome it and keep your C# projects on track. By identifying and addressing the underlying causes, you’ll be able to ensure smooth execution of your applications without being hampered by this error.

Remember, patience and persistence are key when dealing with errors in software development. Keep calm, follow the steps outlined above, and you’ll be back to coding in no time!

DevExpress Batch Edit Grid

The ASPxGridView control allows modify grid data on the client side and then send it to the server. All user changes are maintained on the client side until a user clicks the SaveChange or Cancel button. Set the ASPxGridViewEditingSettings.Mode property to Batch to enable the batch edit functionality. In this article we discuss how to Select All Check Box in DevExpress Batch Edit Grid

DevExpress GridView Partial
@{
    var grid = Html.DevExpress().GridView(settings =>
    {
        settings.Name = "gvName";
        settings.SettingsEditing.Mode = GridViewEditingMode.Batch;
        settings.CommandColumn.Visible = true;
        settings.SettingsEditing.BatchEditSettings.ShowConfirmOnLosingChanges = true;
        settings.SettingsEditing.BatchEditSettings.EditMode = GridViewBatchEditMode.Row;


        settings.KeyFieldName = "varKeyCol";


        settings.SettingsPager.Mode = GridViewPagerMode.ShowAllRecords;


        settings.CommandColumn.SetHeaderTemplateContent(c =>
        {
            Html.DevExpress().CheckBox(settingsCheckBox =>
            {
                settingsCheckBox.Name = "cbSelectAll";
                settingsCheckBox.Text = "Select All";
                settingsCheckBox.Properties.ClientSideEvents.CheckedChanged =
   string.Format("function(s, e) {{ gvSelectAll('{0}'); }}",
       settingsCheckBox.Checked).ToString();
                settingsCheckBox.Properties.ClientInstanceName = "cbSelectAll";
            }).Render();
        });
       
       
        settings.Columns.Add(col =>
        {
            col.FieldName = "bitIsCheck";
            col.ColumnType = MVCxGridViewColumnType.CheckBox;
            varckProperties = col.PropertiesEdit asCheckBoxProperties;
            ckProperties.ClientInstanceName = "bitIsCheck";
        });


        settings.Columns.Add(col =>
        {
            col.FieldName = "ColName";
            col.Caption = "Col Name";
            col.ReadOnly = true;
        });
    });
    if (ViewData["EditError"] != null)
    {
        grid.SetEditErrorText((string)ViewData["EditError"]);
    }
}

@grid.Bind(Model).GetHtml()


JavaScript
 
function gvSelectAll() {
        bitCheck = cbSelectAll.GetChecked();
        var mRow = gvName.GetVisibleRowsOnPage();
        for (i = 0; i < mRow; i++) {
            gvName.StartEditRow(i);
            gvName.GetEditor("bitIsCheck").SetValue(bitCheck);
        }
    }

 

In this article we are discuss in DevExpress How to set the column width when exporting GridView to Excel

Change to Export Width to Using GridViewColumn.ExportWidth property

public static GridViewSettingsReportBookingSummaryExportGridViewSettings()
{
   var settings = new GridViewSettings
   {
CallbackRouteValues = new { Controller = "ReportGenerator", Action = "gvSummaryDtl" },
Name = "gvSummary"
   };
   settings.SettingsExport.ExportedRowType = GridViewExportedRowType.All;
   settings.KeyFieldName = "{ numID }";
   settings.Settings.ShowGroupPanel = true;
   settings.Settings.ShowFilterRowMenu = true;
   settings.Settings.ShowFooter = true;
   settings.Settings.ShowGroupFooter = GridViewGroupFooterMode.VisibleAlways;


   settings.Columns.Add(col => {
      col.FieldName = "Name";
      col.ExportWidth = 500;

   });
}

Unlocking the potential of seamless integration between your application and Outlook can revolutionize your workflow. With DevExpress, you can effortlessly open Outlook with attachment files, streamlining your processes and enhancing productivity. Let’s delve into this innovative approach and unlock the power of streamlined communication and collaboration. In here now we are looking how to Open Outlook With Attachment File using DevExpress

What is DevExpress?

User Interface (UI) Controls and Data Visualization Libraries:

• DevExpress provides pre-built UI components that developers can integrate into their applications. These components offer a consistent look and feel across different platforms and can save developers time compared to building everything from scratch. For instance, they have a Data Grid control that allows you to display and edit tabular data in a visually appealing way.

Reporting and Analytics:

• DevExpress also offers tools for creating reports and dashboards. These tools allow developers to easily visualize data and create interactive reports that can be used for business intelligence. An example is their Dashboard control which lets you drag-and-drop various data visualizations to create insightful dashboards.

IDE Productivity Tools and Application Frameworks:

• DevExpress provides add-ins for popular IDEs (Integrated Development Environments) like Visual Studio that can help developers code more efficiently. They also offer application frameworks that can help developers build specific types of applications, such as cross-platform mobile apps. One example is their CodeRush which offers code completion, refactoring tools, and other features to streamline the development process.

What is Outlook?

1. Email Analytics:

• Open Rates: Track how many recipients open your emails. Marketing platforms like Mailchimp integrate with Outlook and provide open rate data. For instance, the average email open rate across industries is around 25% [source: Mailchimp Email Marketing Benchmarks].

2. Calendar Usage:

• Number of Meetings: Monitor the number of meetings scheduled per week/month. This data can help identify busy periods and optimize scheduling.

3. Contact Management:

• Active Contacts: Track the number of contacts you interact with regularly. This helps prioritize communication with important contacts.

4. External Data Integration:

• Sales Data: Integrate Outlook with CRM (Customer Relationship Management) systems to visualize sales performance data within your inbox.

Example: Open Outlook With Attachment File

First Step : You need to Save File in Server Location

Report1 rpt = new Report1();

rpt.ExportToPdf(FilePath + FileName + ".pdf");

Second Step : Open Outlook with Attachment

Microsoft.Office.Interop.Outlook.Application objApp = newMicrosoft.Office.Interop.Outlook.Application();
Microsoft.Office.Interop.Outlook.MailItem mDocEmail = null;

mDocEmail =  (Microsoft.Office.Interop.Outlook.MailItem)objApp.CreateItem(Microsoft.Office.Interop.Outlook.OlItemType.olMailItem);

foreach (var doc in ExportDocuments(mDocuments))
{
mDocEmail.Attachments.Add((object)FilePath, Microsoft.Office.Interop.Outlook.OlAttachmentType.olEmbeddeditem, 1, (object)"Attachment");
}

mDocEmail.Subject = "";
mDocEmail.To = UserLogin.varUserEmail;
mDocEmail.Display();

Conclusion

In conclusion, DevExpress offers a powerful solution for opening Outlook with attachment files seamlessly. By integrating DevExpress into your application, you can enhance user experience, streamline workflow efficiency, and boost productivity. Say goodbye to manual processes and hello to streamlined communication and collaboration with DevExpress. Unlock the potential of seamless integration today!

Are you ready to streamline your report generation process and boost productivity? Look no further than DevExpress! In this comprehensive guide, we’ll explore how you can effortlessly download multiple reports using DevExpress. From enhancing efficiency to optimizing your workflow, DevExpress empowers you to achieve more in less time.

Effortless Report Download with DevExpress

Experience the convenience of downloading multiple reports seamlessly with DevExpress. Say goodbye to manual report generation and hello to automated efficiency. Let’s delve into the steps to unlock this powerful feature.

Step 1: Access DevExpress Reporting Platform

First things first, ensure you have access to the DevExpress reporting platform. Whether you’re a seasoned user or new to the platform, DevExpress offers intuitive navigation for a seamless user experience.

Step 2: Navigate to the Report Download Section

Once logged in, navigate to the report download section within the DevExpress interface. Here, you’ll find a range of options tailored to your specific needs, including the ability to download multiple reports simultaneously.

Step 3: Select Reports for Download

With DevExpress, you have the flexibility to select multiple reports for download with just a few clicks. Whether you’re retrieving daily sales reports or monthly analytics, DevExpress simplifies the process, saving you valuable time and effort.

Step 4: Customize Download Settings

Tailor your download experience to suit your preferences with DevExpress’s customizable settings. From file formats to delivery methods, you have full control over how your reports are downloaded and accessed.

Step 5: Initiate Download Process

Once you’ve selected your desired reports and customized your settings, simply initiate the download process. Sit back and relax as DevExpress handles the rest, effortlessly downloading multiple reports with speed and precision.

Example: DevExpress Download Multiple Report

Here the example how to Download Multiple Report using DecExpress and ASP.net C#

Add Ionic.Zip.dll DLL

            var outputStream = new MemoryStream();
            try
            {
                using (var zip = new ZipFile())
                {

                    foreach (var doc in GetDocuments(mDocuments))
                    {
                        zip.AddEntry(doc.Key, doc.Value);
                    }
                    zip.Save(outputStream);
                }
                outputStream.Position = 0;
            }
            catch (Exception ex)
            {
                throw;
            }
            return File(outputStream, "application/zip", "docs_to_mail.zip");

Conclusion

In conclusion, DevExpress offers a powerful solution for effortlessly downloading multiple reports. From enhanced efficiency to streamlined workflow, DevExpress empowers you to achieve more with less effort. Experience the convenience and reliability of DevExpress for all your report download needs today!

Sending email with DevExpress report functionality simplifies your workflow, ensuring seamless communication and professional document sharing. In this guide, we’ll explore the process of effortlessly Send Email DevExpress Report, empowering you to streamline your operations and enhance productivity.

Introduction to DevExpress Report Email Sending

In today’s fast-paced business environment, efficient communication is essential. Whether you’re sharing important documents, delivering reports to stakeholders, or sending updates to clients, email remains a cornerstone of modern correspondence. With DevExpress, integrating email sending capabilities into your application is straightforward, allowing you to enhance user experience and streamline processes.

Integrating Email Sending Functionality

To begin sending emails with DevExpress reports, you’ll first need to integrate the necessary functionality into your application. DevExpress provides comprehensive tools and libraries that enable developers to seamlessly incorporate email sending capabilities into their software.

Configuring Email Settings

Once you’ve integrated DevExpress into your application, the next step is to configure the email settings. This involves specifying the SMTP server details, authentication credentials, and other relevant parameters necessary for sending emails. By configuring these settings, you ensure that your application can successfully connect to the mail server and deliver messages reliably.

Creating and Customizing Reports

With DevExpress, creating and customizing reports is a breeze. Whether you need to generate financial statements, sales reports, or analytical summaries, DevExpress offers a wide range of reporting tools to meet your needs. You can easily design visually stunning reports with rich formatting, charts, and graphs, ensuring that your data is presented effectively to your audience.

Generating Email Reports

Once your report is designed and customized to your specifications, the next step is to generate the email report. With DevExpress, this process is seamless and intuitive. You can effortlessly convert your report into an email-friendly format, ensuring that it’s optimized for viewing on various devices and platforms.

Example: Send Email DevExpress Report

 // Create a new memory stream and export the report into it as PDF.

MemoryStream mem = new MemoryStream();
objReport.ExportToPdf(mem);

 // Create a new attachment and put the PDF report into it.
mem.Seek(0, System.IO.SeekOrigin.Begin);
Attachment att = new Attachment(mem, FileName + ".pdf", "application/pdf");

 // Create a new message and attach the PDF report to it.
MailMessage mail = new MailMessage();
mail.Attachments.Add(att);

mail.Subject = mInvAdd.mEmailSubject;
mail.Body = mInvAdd.mEmailBody;

// Send the e-mail message via the specified SMTP server.

SmtpClient mSmtpClient = new SmtpClient("mail.hayleys.com");
mSmtpClient.Credentials = new System.Net.NetworkCredential(UserName, varPassword);
                
mSmtpClient.Send(mail);

Conclusion

In conclusion, Send Email DevExpress Report offers a convenient and efficient solution for businesses and developers alike. By integrating email sending functionality into your application, you can streamline communication, enhance productivity, and deliver professional-looking reports to your audience. With DevExpress, the process is simple, intuitive, and highly customizable, allowing you to meet the unique needs of your organization with ease.

Gridview, a fundamental component in web development, becomes even more powerful when enhanced with a ComboBox within the CellEditorInitialize event. This blog post aims to unravel the capabilities and intricacies of integrating a Gridview ComboBox in CellEditorInitialize Event

protected void gvName_CellEditorInitialize(object sender,      
                                                                        DevExpress.Web.ASPxGridViewEditorEventArgs e)
{
           if (e.Column.FieldName == "ColumnName")
            {
                ASPxComboBox combo = e.Editor as ASPxComboBox;
                combo.DataSource = null;
                combo.DataBind();
                combo.DataSource = 
                      obj.GetProdByCompany(Convert.ToString(cmbCompany.Value));
                combo.DataBind();
            }
}

Integrating a ComboBox inside a GridView column can significantly enhance the user experience in your application. This blog post explores how to Add Combobox inside the Gridview column

DevExpress is a comprehensive software development toolset known for its robust features and user-friendly interfaces. Among its many components, one standout feature is its ability to integrate ComboBox controls seamlessly within GridView columns. In this article, we’ll delve into the process of adding a ComboBox inside a GridView column using DevExpress, exploring its benefits, customization options, and best practices.

1. Introduction to DevExpress

DevExpress offers a suite of tools designed to streamline the software development process. It provides a wide range of UI controls and libraries that enhance the functionality and aesthetics of applications across various platforms.

2. What is a ComboBox?

A ComboBox, also known as a drop-down list or a combo box, is a graphical control element that allows users to select one option from a list of predefined choices. It combines the features of a text box and a list box, enabling users to either type a value directly or choose from the dropdown menu.

3. Why Add a ComboBox Inside a GridView Column?

Integrating a ComboBox within a GridView column offers numerous advantages in data management and user interaction. It provides users with a more intuitive way to input data and select options, enhancing the overall usability of the application.

4. Benefits of Using DevExpress ComboBox in GridView

• Enhanced User Experience: DevExpress ComboBox offers a sleek and responsive interface, improving user satisfaction.
• Efficient Data Entry: By providing a dropdown list of predefined options, ComboBox simplifies data entry and minimizes errors.
• Seamless Integration: DevExpress seamlessly integrates ComboBox controls within GridView columns, ensuring a cohesive and professional-looking interface.

Example: Add Combobox inside the Gridview column

Grid view Column
 
settings.Columns.Add(col =>
{
    col.FieldName = "numID";
    col.Caption = "Creditor";
    col.Width = 200;
    col.SetEditItemTemplateContent(c =>
    {
          ViewContext.Writer.Write("<div id='divID'>");
          Html.RenderPartial("_cmbShipCostCreditorPartial");
          ViewContext.Writer.Write("</div>");
    }); 


});


Combobox Partial


@Html.DevExpress().ComboBox(settingsCB =>
{
    settingsCB.Name = "numShipCreditorCode";
    settingsCB.SelectedIndex = -1;
    settingsCB.ControlStyle.CssClass = "editor";
    settingsCB.Properties.DropDownStyle = DropDownStyle.DropDownList;
    settingsCB.CallbackRouteValues = new { Controller = "Controller Name", Action = "Action Name" };
    settingsCB.Properties.CallbackPageSize = 10;
    settingsCB.Properties.TextField = "A";
    settingsCB.Properties.ValueField = "B";
    settingsCB.Properties.ValueType = typeof(string);
    settingsCB.Width = 200;
 
    settingsCB.Properties.Columns.Add("A", "Code", 80);
    settingsCB.Properties.Columns.Add("B", "Name", 300);
  


    /// Bind Model Data Value
    settingsCB.PreRender += (s, e) =>
    {
        var cmbShpCostCrd = s as MVCxComboBox;
        cmbShpCostCrd.Value = Model;
        cmbShpCostCrd.DataBind();


        if (Convert.ToString(cmbShpCostCrd.Value) != "")
            cmbShpCostCrd.SelectedIndex = 1;
        else
            cmbShpCostCrd.SelectedIndex = -1;
    };   
}).BindList().Bind(Model).GetHtml()

5. Conclusion

Integrating a ComboBox inside a GridView column with DevExpress enhances the usability and functionality of data-driven applications. By following the step-by-step guide and best practices outlined in this article, developers can create intuitive and efficient user interfaces that improve the overall user experience.

FAQs

Q1: Can I add multiple ComboBoxes inside a single GridView column? Yes, DevExpress allows you to add multiple ComboBoxes within a single GridView column, facilitating more complex data entry scenarios.

Q2: Is DevExpress compatible with different data sources? Yes, DevExpress supports a wide range of data sources, including databases, collections, and web services, ensuring compatibility with various application architectures.

Q3: Can I customize the appearance of the ComboBox inside the GridView? Absolutely, DevExpress offers extensive customization options for ComboBox controls, allowing you to tailor the appearance to match your application’s design.

Q4: How can I handle data binding with DevExpress ComboBox? DevExpress provides intuitive data binding mechanisms, allowing you to bind ComboBox controls to data sources effortlessly.

Q5: Does DevExpress provide support for mobile applications? Yes, DevExpress offers robust support for mobile development, allowing you to create responsive and feature-rich applications for both iOS and Android platforms.