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How to clear the selected items in DropDownList from server side?

Platform: ASP.NET Web Forms |
Control: DropDownList |
Published Date: February 20, 2018 |
Last Revised Date: May 7, 2019

How to clear the selected items in DropDownList from server side

 

To clear selected items in the DropDownList from Code behind, we can use the ClearSelection method. This method clears all the selected values. Refer to the following code.

[CS]

protected void btn1_Click(object sender, EventArgs e)
{
    this.selectCar.ClearSelection();
}

 

[ASPX]

<ej:DropDownList ID="selectCar"   ShowCheckbox="true" runat="server">
</ej:DropDownList>

 

Otherwise, the selected items can also be removed using any of the following properties.

Clearing the selection by setting SelectedIndex property to -1

[CS]

protected void btn1_Click(object sender, EventArgs e)
{
    this.selectCar.SelectedIndex = -1;
}

 

Clearing the selected value by setting an empty string to Value property

[CS]

protected void btn1_Click(object sender, EventArgs e)
{
    this.selectCar.Value = "";
}

 

Clearing the selected text by setting an empty string to Text property

[CS]

protected void btn1_Click(object sender, EventArgs e)
{
    this.selectCar.Text = "";
}

 

Sample

 

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