如何在选择组合框winform C＃时检查datagridview [英] How to get checked in datagridview on selection of combobox winform C#

问题描述

我有One Combobox它有一些价值。一个datagridview控件和datagridview有两列CheckBox，即用于选择，另一列是Items。加载事件datagridview显示所有值。现在我想从组合框中选择仅检查那些行。值从SQL Server显示。



请帮助一些!!



谢谢



我的尝试：



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I have One Combobox it has some value. And one datagridview control and datagridview has two column CheckBox i.e. for selection and another one is Items. On load Event datagridview displayed all values. Now I want get checked only those rows on selecting from combobox. Value is displaying from SQL Server.

Please help some!!

Thanks

What I have tried:

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推荐答案

您可以使用for循环和if else条件找到您的匹配项，然后使用下面的代码来检查复选框。

You can use for loop and if else condition to find your match and then use below code to check checkbox.

dgvDetails.Rows(intRow).Cells("chk").Value = CheckState.Checked

以上代码在vb.net中。将其转换为c＃.net

above code is in vb.net. convert it to c#.net

尝试这样

从设计师处添加一个Checkboxcell。

try like this
Add a Checkboxcell from the designer.

private void Form1_Load(object sender, EventArgs e)
       {
           DataTable dt = new DataTable();

           dt.Columns.Add("Column2");
           dt.Rows.Add( "one");
           dt.Rows.Add( "two");
           dt.Rows.Add( "three");
           dt.Rows.Add( "four");

           dataGridView1.DataSource = dt;
           comboBox1.DisplayMember = "Column2";
           comboBox1.ValueMember = "Column2";
           comboBox1.DataSource = dt;

       }

       private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
       {
           string value = comboBox1.SelectedValue.ToString();
           foreach (DataGridViewRow row in dataGridView1.Rows)
           {
               var cell = row.Cells[0] as DataGridViewCheckBoxCell;
               cell.Value = false;
               if (Convert.ToString(row.Cells[1].Value) + "" == value)
                   cell.Value = true;


           }
       }

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